Sears 20.21125 Owner's manual

BASIC FIELD MANUAL

FOR

CANISTER VACUUM CLEANER

DIVISION 20

MODEL 721.21195000

721.21295000

20.21125

20.21325

MODEL 721.21195000

721.21295000

20.21125

20.21325

September, 2001

- 2 -

1. SAFETY PRECAUTIONS ...................................................................................................................... 3

2. CAUTIONS............................................................................................................................................. 3

3. DESCRIPTION / SPECIFICATIONS

3.1 MODEL 721.21195000, 20.21125...............................................................................................4

3.2 MODEL 721.21295000, 20.21325...............................................................................................5

4. DISASSEMBLY................................................................................................................................... 6-9

5. TROUBLE SHOOTING.................................................................................................................. 10~12

6. WIRING DIAGRAM / SCHEMATIC DIAGRAM

6.1 MODEL 721.21195000, 20.21125.............................................................................................13

6.2 MODEL 721.21295000, 20.21325.............................................................................................14

7. POWER AND CONTROL CIRCUIT BOARD

7.1 MODEL 721.21195000, 20.21125.............................................................................................15

7.2 MODEL 721.21295000, 20.21325.............................................................................................16

8. EXPLODED VIEW / REPLACEMENT PARTS LIST

8.1 MODEL 721.21195000, 20.21125.......................................................................................17~22

8.2 MODEL 721.21295000, 20.21325.......................................................................................23~30

FOREWORD

BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS

MANUAL.

MODEL 721.21195000

721.21295000

20.21125

20.21325

MECHANICAL SERVICE INFORMATION

TABLE OF CONTENTS

MODEL 721.21195000

721.21295000

20.21125

20.21325

1. Change the paper bag in case the indicator

moves toward red.

1) If the dust bag is full, intake power will be reduced.

2) When the dust bag is full of dust, pull out the dust bag

from the bag mount.

2. Filter

1) The filter is composed of a clean filter, a exhaust filter

and filter bag.

2) Never use the vacuum cleaner without filters.

It may harm to the motor.

NOTE : Re-use of the clean filter.

• Never wash the filter in a washing machine or in a

dishwasher.

• Never use hot water for washing the filter.

• Re-use the filter after drying it completely in the shade.

• Do not dry near fire or direct sun ray.

3. Dust indicator

Dust indicator shows you red color when the filter is full of

dust.

Then, change the bag with new one.

4. Avoid suction such materials as :

1) Liquid or wet dust :

Clog the ventilation holes and reduces the intake power

significantly and harms the motor.

2) Inflammable liquids such as benzene, alcohol or

solvents.

3) Burning objects such as cigarette butts.

4) Bulky objects such as vinyl, paper etc.

5) Sharp objects such as needles, pins, metal or glass

particles etc.

5. Attachments

• Nozzle : for cleaning wooden floor, the room floor and

carpet.

• Brush/Crevice Tool(without brush): for cleaning any

crevice, inside corners of window frames.(However, do

not use the crevice tool more than 20 minutes.)

Brush/Crevice Tool (with brush): for delicate vacuuming

of fabrics on the furniture, curtains, etc.

• Upholstery Nozzle : for vacuuming the dust on the

upholstery.

6. Close supervision is necessary when this

vacuum cleaner is used by or near children.

Children's carelessness may cause damage to

the cleaner or injure persons.

7. Air exhausted from the vacuum cleaner is

normally warm. But if extraordinarily hot air is

exhausted, check if the extension pipe, hose or

dust bag is clogged or not.

8. Electric shock could occur if used outdoors or

on wet surfaces.

1.SAFETY PRECAUTIONS

- 3 -

MODEL 721.21195000

721.21295000

20.21125

20.21325

BEFORE OPERATING THIS VACUUM CLEANER, READ THIS SERVICE MANUAL THOROUGHLY, AND

OBSERVE EACH POINT CAREFULLY.

1. Motor exchange

1) Separate the Body Cover and Body Base by unfastening

the screws.

2) Disconnect the lead wires.

3) Lift the old motor and replace it with a new one.

2. In case of exchanging other parts, refer to the

exploded view.

2.CAUTIONS

BEFORE ATTEMPTING TO SERVICE OR ADJUST ANY PART OF THE VACUUM CLEANER, DISCONNECT THE

ELECTRICAL POWER SUPPLY CORD FROM THE WALL OUTLET.

MODEL 721.21195000

721.21295000

20.21125

20.21325

SPECIFICATIONS

• POWER SOURCE: ON RATING PLATE

• POWER CONTROL:

MAIN: SLIDE CONTROL ON HANDLE

• CAPACITY: 2

L

• CORD LENGTH: 5 m

• HOSE LENGTH: 1.5 m

• NET WEIGHT: 4.5 kg

• PACKING WEIGHT: 8.4 kg

• NET DIMENSION: 293

×

334

× 243

(W

×

D

×

H)mm

• PACKING DIMENSION:

325 × 565 × 307(W × D × H)mm

• ATTACHMENTS

FLEXIBLE HOSE ASSY............................................. 1EA

TELESCOPIC WAND................................................. 1EA

RUG/FLOOR NOZZLE................................................1EA

BRUSH/CREVICE TOOL............................................ 1EA

UPHOLSTERY NOZZLE............................................ 1EA

ACCESSORY HOLDER............................................. 1EA

3.DESCRIPTION/SPECIFICATIONS

- 4 -

ATTACHMENTS

UPHOLSTERY NOZZLEBRUSH / CREVICE TOOL ACCESSORY HOLDER

Body cover

Body base

Handle

Dust Indicator

Filter cover

Flexible Hose ASS'Y

Telescopic Wand

Wheel

Rug/Floor Nozzle

3.1 MODEL 721.21195000, 20.21125

DESCRIPTION

- 5 -

MODEL 721.21195000

721.21295000

20.21125

20.21325

• POWER SOURCE: ON RATING PLATE

• POWER CONTROL:

MAIN: SLIDE CONTROL ON HANDLE

• CAPACITY: 2

L

• CORD LENGTH: 5 m

• HOSE LENGTH: 1.8 m

• NET WEIGHT: 4.5 kg

• PACKING WEIGHT: 10.2 kg

• NET DIMENSION: 293

×

334

×

243 (W

×

D

×

H)mm

• PACKING DIMENSION:

325 × 613 × 328(W × D × H)mm

• ATTACHMENTS

FLEXIBLE HOSE ASSY............................................. 1EA

TELESCOPIC WAND................................................. 1EA

Power-Mate ®..............................................................1EA

SANI-PUNCH NOZZLE...............................................1EA

BRUSH/CREVICE TOOL............................................ 1EA

UPHOLSTERY NOZZLE............................................ 1EA

ACCESSORY HOLDER............................................. 1EA

Power Cord

(Not Shown)

Cord Reel

Button

Cord and

Cord Holder

Dust Indicator

Suction Inlet

Fitting Hook

Latch

Power

-Mate

®

Pawer

-Mate

®

Plug

Hose

Wand Holder

Wand Button

Telescopic

Wand

Cord Holder

Power Cord

Handle Button

Power-Mate

®

ON/OFF Switch

Slide Switch

ATTACHMENTS

UPHOLSTERY NOZZLE

BRUSH / CREVICE TOOL

ACCESSORY HOLDER

SANI-PUNCH NOZZLE

3.2 MODEL 721.21295000, 20.21325

DESCRIPTION

SPECIFICATIONS

MODEL 721.21195000

721.21295000

20.21125

20.21325

4.DISASSEMBLY

• Almost all the parts of this vacuum cleaner can be

assembled with a screw driver and each connecting

component easily fits each other.

Disassemble one by one referring to the exploded view.

• If possible, don’t disassemble except for the necessary

parts. It is not necessary to disassemble the parts that

are not detailed in the exploded view.

4.1 Filter Cover Assembly Replacement

l) Grasp body base and open filter cover.

2) Push the hinge side by inserting flat screw driver in

crack between hinge and body cover.

4.2 Indicator Assembly Replacement

4.3 Body Cover Assembly Replacement

1) Open the filter cover and remove the two screws and

remove the four screws fastening the body base.

2) Lift body cover in the direction of the arrow.

- 6 -

NOTE: Before attempting to service or adjust any part of the vacuum cleaner, disconnect the electrical power supply cord

from the wall outlet.

Filter Cover

Body Base

Hinge

4.4 P.W.B ASS’Y Replacement.

1) Lift the P.W.B ASS’Y in the direction of the arrow.

4.5 Motor Assembly Replacement

• Lift the motor assembly in direction of the arrow after

stripping off the lead wires.

4.6 Cord reel assembly replacement

1) Lift the cord reel assembly from the body base in

direction of the arrow.

2) Strip off the lead wires.

- 7 -

MODEL 721.21195000

721.21295000

20.21125

20.21325

Motor ASS'Y

Cord Reel

ASS'Y

- 8 -

MODEL 721.21195000

721.21295000

20.21125

20.21325

4.7 Belt Changing and Brush Cleaning

(ONLY MODEL 721.21295000, 20.21325)

• Disconnect cleaner from electrical outlet. Check and

remove hair, string and lint build-up frequently in the

Power-Mate® brush and brush support areas. If build-up

becomes excessive, disconnect Power-Mate® from

Telescopic wand.

TO REMOVE BELT

1) Turn power-Mate® upside down.

2) Unscrew the for Power-Mate® cover screws.

3) Turn Power-Mate® rear side up and tilt cover forward

from back until front snaps free.

4) Carefully insert and lift screwdriver at each brush support

to free brush from base.

4) Remove worn belt.

6) Slide brush supports off to check and clean brush

support areas. See BRUSH ASSEMBLY for picture of

complete brush assembly.

Wheel

Brush Support

Base

- 9 -

MODEL 721.21195000

721.21295000

20.21125

20.21325

TO REPLACE BELT:

1) Install brush supports onto brush assembly.

2) Install new belt in belt groove on the brush assembly,

than over the motor shaft. Be sure belt in between the

belt guards.

3) Insert each support into its base slots.

4) Line up tabs on cover with slots inside the base.

5) Push cover and base together.

Base Slot

Cover Tab

Motor Shaft

Belt Guard

Belt Groove

Belt

MODEL 721.21195000

721.21295000

20.21125

20.21325

CHECKING CAUSE SOLUTION

Check the power source

Poor plug insertion

Power cord cut

Interior lead wire cut

Motor(stator armature) coil

cut or damaged

Poor contact carbon brush

defaced

Motor armature cut

Ball bearing defacement

Impeller hindrance

(Caused by foreign matters)

Insert again

Repair or exchange

Exchange the lead wire

Exchange the motor

Exchange or repair

Poor switch contact point Exchange the switch

Exchange the motor

Remove the foreign matters

Normal

5.TROUBLE SHOOTING

- 10 -

1) SWITCH ON BUT MOTOR DOES NOT TURN

2) SWITCH ON, MOTOR DOES NOT TURN BUT BUZZES

MODEL 721.21195000

721.21295000

20.21125

20.21325

- 11 -

Carbon brush defaced

Motor armature cut

Foreign matters attached to

the impeller

Low voltage

Exchange the carbon brush

or the motor

Exchange the motor

Remove the foreign matters

Inquire to the power utility

company

Low rotation speed

Poor connection

Poor switch

Repair

Exchange the switch

Filter bag or cloth bag is filled

with inhaled foreign matters

Hose and extension wands are

clogged with foreign matters

Remove the foreign matters

in the hose or extension wands

The slide knob on the handle

is opened

Close the slide knob by

sliding it

Motor turns normally,

but suction power is weak

Remove the foreign matters

or exchange the filter bag or

clean the cloth bag

3) SWITCH OFF BUT MOTOR TURNS

4) WEAK SUCTION POWER

MODEL 721.21195000

721.21295000

20.21125

20.21325

- 12 -

5) VIBRATION NOISES

6) RADIO, TV RECEPTION DISTURBANCE

7) IMPROPER HOSE OR NOZZLE CONNECTION

Poor cord, lead wire

Poor carbon brush rectified

Poor electric connector

or receiver

Poor capacitor

Exchange cord, lead wire

Exchange the carbon brush

or the motor

Repair the electric connector

or receiver

Exchange the capacitor

Bent connection parts

Poor connection

(Caused by foreign matters)

Exchange the parts

Remove the foreign matters

and reconnect

Loose parts

Unbalanced motor assembly

Foreign matters are attached

to the impeller

Poor carbon brush rectification

Secure firmly

Exchange or repair the motor

Remove the foreign matters

Exchange the carbon brush

or the motor

Armature is cut or foreign

matters attached

Exchange motor

Remove foreign matters

MODEL 721.21195000

721.21295000

20.21125

20.21325

- 13 -

6.

WIRING DIAGRAM / SCHEMATIC DIAGRAM

SCHEMATIC DIAGRAM

M

C4

0.47µF

/AC

250V

C5

0.47µF

100V

C1

0.1µF

630V

R2

220

1/2W

R1

100

1/2W

R4

470

1/2W

Transformer

Fuse

T.S

R12

470K

R12-1

470K

R7

10K

R11

10K

R10

100

R6

22K

IC1

Opto-triac

TLP762

16

4

G

SS

_

+

T1

TRIAC

T2

2

VR1

20K

Q2

A1015

D5

1N4148

Q1

C3198

BD1

DF01M

R8

1K

R9

100

WH

BL

BK

BL

BR

TS

P.W.B. ASS'Y

MOTOR

C/REEL ASS'Y

BR

BL

SLIDE VOLUME S/W

FLEXIBLE HOSE ASS'Y

FUSE

250V/15A

6.1 MODEL 721.21195000, 20.21125

WIRING DIAGRAM

- 14 -

MODEL 721.21195000

721.21295000

20.21125

20.21325

SCHEMATIC DIAGRAM

M

R1

100

1/2W

C2

0.1µF

250V

C4

2200µF

16V

C4

0.47µF

Power

-Mate

®

S/W

D1

1N4007

R6

10K, 5W

Power

-Mate

®

MOTOR

R4

33

1/2W

R2

33

1/2W

OPTION

R3

3.9K

1/2W

R9

100

R8

1K

R7

3K

Q1

C3198

R10

100K

OPTO-TRIAC

TLP762JF

6

4

1

2

MAIN MOTOR

R5 VR1

C3

T1

TRIAC

DIAC

T2

WH

WHWHWH

BKBK

PROTECTOR,

AGITATOR

Power-Mate

®

MOTOR

BL

Power-Mate

®

ON/OFF SWITCH

RD

WH

BK

BL

RD

BK

BL

BR

6

1

TS

P.W.B. ASS'Y

MOTOR

C/REEL ASS'Y

BL

BR

SLIDE VOLUME S/W

F/ HOSE ASS'YTELESCOPIC

WAND

Power-Mate

®

FUSE

250V/15A

6.2 MODEL 721.21295000, 20.21325

WIRING DIAGRAM

- 15 -

MODEL 721.21195000

721.21295000

20.21125

20.21325

7.

POWER AND CONTROL CIRCUIT BOARD

7.1 MODEL 721.21195000, 20.21125

COMPONENT SIDE SOLDER SIDE

- 16 -

MODEL 721.21195000

721.21295000

20.21125

20.21325

7.2 MODEL 721.21295000, 20.21325

COMPONENT SIDE

SOLDER SIDE

MODEL 721.21195000

721.21295000

20.21125

20.21325

- 17 -

139202

146811

152302

149801

150401

144411

130401

168711

152301

139201

144801

149704

368011

TPL428

449801

135502

146601

TPL433

545805

135505

139206

152311

8.

EXPLODED VIEW/REPLACEMENT PARTS LIST

8.1 MODEL 721.21195000, 20.21125

EXPLODES VIEW

MODEL721.21195000

20.21125

MODEL 721.21195000

721.21295000

20.21125

20.21325

- 18 -

146871

164111

10FZZ1

169301

MODEL 721.21195000

20.21125

MODEL 721.21195000

721.21295000

20.21125

20.21325

- 19 -

335506

TPL328

349701

340261

235501

247661

335501

340361

236501

252302

239401

250202

249701

335211

MODEL721.21195000

20.21125

- 20 -

MODEL 721.21195000

721.21295000

20.21125

20.21325

435507

444802

449701

449321

435001

TPL324

436501

452151

449401

652481

652031 649311

552491

649301

652012

MODEL 721.21195000

20.21125

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